html/cgi-bin/ddns.cgi

   1 #!/usr/bin/perl
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2007-2014  IPFire Team  <info@ipfire.org>                     #
   6 #                                                                             #
   7 # This program is free software: you can redistribute it and/or modify        #
   8 # it under the terms of the GNU General Public License as published by        #
   9 # the Free Software Foundation, either version 3 of the License, or           #
  10 # (at your option) any later version.                                         #
  11 #                                                                             #
  12 # This program is distributed in the hope that it will be useful,             #
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  15 # GNU General Public License for more details.                                #
  16 #                                                                             #
  17 # You should have received a copy of the GNU General Public License           #
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  19 #                                                                             #
  20 ###############################################################################
  21
  22 use strict;
  23 use experimental 'smartmatch';
  24
  25 # enable only the following on debugging purpose
  26 #use warnings;
  27 #use CGI::Carp 'fatalsToBrowser';
  28
  29 require '/var/ipfire/general-functions.pl';
  30 require "${General::swroot}/lang.pl";
  31 require "${General::swroot}/header.pl";
  32
  33 #workaround to suppress a warning when a variable is used only once
  34 my @dummy = ( ${Header::table2colour}, ${Header::colouryellow} );
  35 undef (@dummy);
  36
  37 my %color = ();
  38 my %mainsettings = ();
  39 &General::readhash("${General::swroot}/main/settings", \%mainsettings);
  40 &General::readhash("/srv/web/ipfire/html/themes/ipfire/include/colors.txt", \%color);
  41
  42 # Config file for basic configuration.
  43 my $settingsfile = "${General::swroot}/ddns/settings";
  44
  45 # Config file to store the configured ddns providers.
  46 my $datafile = "${General::swroot}/ddns/config";
  47
  48 # Call the ddnsctrl helper binary to perform the update.
  49 my @ddnsprog = ("/usr/local/bin/ddnsctrl", "update-all");
  50
  51 my %settings=();
  52 my $errormessage = '';
  53
  54 # DDNS General settings.
  55 $settings{'BEHINDROUTER'} = 'RED_IP';
  56
  57 # Account settings.
  58 $settings{'HOSTNAME'} = '';
  59 $settings{'DOMAIN'} = '';
  60 $settings{'LOGIN'} = '';
  61 $settings{'PASSWORD'} = '';
  62 $settings{'TOKEN'} = '';
  63 $settings{'ENABLED'} = '';
  64 $settings{'PROXY'} = '';
  65 $settings{'SERVICE'} = '';
  66
  67 $settings{'ACTION'} = '';
  68
  69 # Get all supported ddns providers.
  70 my @providers = &GetProviders("all");
  71
  72 # Get provider which support a token based authentication mechanism.
  73 my @token_provider = &GetProviders("token-providers");
  74
  75 # Hook to regenerate the configuration files, if cgi got called from command line.
  76 if ($ENV{"REMOTE_ADDR"} eq "") {
  77         &GenerateDDNSConfigFile();
  78         exit(0);
  79 }
  80
  81 &Header::showhttpheaders();
  82
  83 #Get GUI values
  84 &Header::getcgihash(\%settings);
  85
  86 # Read configuration file.
  87 open(FILE, "$datafile") or die "Unable to open $datafile.";
  88 my @current = <FILE>;
  89 close (FILE);
  90
  91 #
  92 # Save General Settings.
  93 #
  94 if ($settings{'ACTION'} eq $Lang::tr{'save'}) {
  95         # Open /var/ipfire/ddns/settings for writing.
  96         open(FILE, ">$settingsfile") or die "Unable to open $settingsfile.";
  97
  98         # Lock file for writing.
  99         flock FILE, 2;
 100
 101         # Check if BEHINDROUTER has been configured.
 102         if ($settings{'BEHINDROUTER'} ne '') {
 103                 print FILE "BEHINDROUTER=$settings{'BEHINDROUTER'}\n";
 104         }
 105
 106         # Close file after writing.
 107         close(FILE);
 108
 109         # Update ddns config file.
 110         &GenerateDDNSConfigFile();
 111 }
 112
 113 #
 114 # Toggle enable/disable field.  Field is in second position
 115 #
 116 if ($settings{'ACTION'} eq $Lang::tr{'toggle enable disable'}) {
 117         # Open /var/ipfire/ddns/config for writing.
 118         open(FILE, ">$datafile") or die "Unable to open $datafile.";
 119
 120         # Lock file for writing.
 121         flock FILE, 2;
 122
 123         my @temp;
 124         my $id = 0;
 125
 126         # Read file line by line.
 127         foreach my $line (@current) {
 128                 # Remove newlines.
 129                 chomp($line);
 130
 131                 if ($settings{'ID'} eq $id) {
 132                         # Splitt lines (splitting element is a single ",") and save values into temp array.
 133                         @temp = split(/\,/,$line);
 134
 135                         # Check if we want to toggle ENABLED or WILDCARDS.
 136                         if ($settings{'ENABLED'} ne '') {
 137                                 # Update ENABLED.
 138                                 print FILE "$temp[0],$temp[1],$temp[2],$temp[3],$temp[4],$temp[5],$temp[6],$settings{'ENABLED'}\n";
 139                         }
 140                 } else {
 141                         # Print unmodified line.
 142                         print FILE "$line\n";
 143                 }
 144
 145                 # Increase $id.
 146                 $id++;
 147         }
 148         undef $settings{'ID'};
 149
 150         # Close file after writing.
 151         close(FILE);
 152
 153         # Write out logging notice.
 154         &General::log($Lang::tr{'ddns hostname modified'});
 155
 156         # Update ddns config file.
 157         &GenerateDDNSConfigFile();
 158 }
 159
 160 #
 161 # Add new accounts, or edit existing ones.
 162 #
 163 if (($settings{'ACTION'} eq $Lang::tr{'add'}) || ($settings{'ACTION'} eq $Lang::tr{'update'})) {
 164         # Check if a hostname has been given.
 165         if ($settings{'HOSTNAME'} eq '') {
 166                 $errormessage = $Lang::tr{'hostname not set'};
 167         }
 168
 169         # Check if a valid domainname has been provided.
 170         if (!&General::validdomainname($settings{'HOSTNAME'})) {
 171                 $errormessage = $Lang::tr{'invalid domain name'};
 172         }
 173
 174         # Check if a username has been sent.
 175         if ($settings{'LOGIN'} eq '') {
 176                 $errormessage = $Lang::tr{'username not set'};
 177         }
 178
 179         # Check if a password has been typed in.
 180         # freedns.afraid.org does not require this field.
 181         if (($settings{'PASSWORD'} eq '') && ($settings{'SERVICE'} ne 'freedns.afraid.org') && ($settings{'SERVICE'} ne 'regfish.com')) {
 182                 $errormessage = $Lang::tr{'password not set'};
 183         }
 184
 185         # Check if a token has been given for provider which support tokens.
 186         if (($settings{'SERVICE'} ~~ @token_provider) && ($settings{'TOKEN'} eq '')) {
 187                 $errormessage = $Lang::tr{'token not set'};
 188         }
 189
 190         # Go furter if there was no error.
 191         if (!$errormessage) {
 192                 # Splitt hostname field into 2 parts for storrage.
 193                 my($hostname, $domain) = split(/\./, $settings{'HOSTNAME'}, 2);
 194
 195                 # Handle enabled checkbox. When the checkbox is selected a "on" will be returned,
 196                 # if the checkbox is not checked nothing is returned in this case we set the value to "off".
 197                 if ($settings{'ENABLED'} ne 'on') {
 198                         $settings{'ENABLED'} = 'off';
 199                 }
 200
 201                 # Handle token provider.
 202                 if($settings{'SERVICE'} ~~ @token_provider) {
 203                         # Clear username and password if they contain values.
 204                         undef($settings{'LOGIN'});
 205                         undef($settings{'PASSWORD'});
 206
 207                         # Assign the token as a password for saving.
 208                         $settings{'PASSWORD'} = $settings{'TOKEN'};
 209                 }
 210
 211                 # Handle adding new accounts.
 212                 if ($settings{'ACTION'} eq $Lang::tr{'add'}) {
 213                         # Open /var/ipfire/ddns/config for writing.
 214                         open(FILE, ">>$datafile") or die "Unable to open $datafile.";
 215
 216                         # Lock file for writing.
 217                         flock FILE, 2;
 218
 219                         # Add account data to the file.
 220                         print FILE "$settings{'SERVICE'},$hostname,$domain,$settings{'PROXY'},$settings{'WILDCARDS'},$settings{'LOGIN'},$settings{'PASSWORD'},$settings{'ENABLED'}\n";
 221
 222                         # Close file after writing.
 223                         close(FILE);
 224
 225                         # Write out notice to logfile.
 226                         &General::log($Lang::tr{'ddns hostname added'});
 227
 228                 # Handle account edditing.
 229                 } elsif ($settings{'ACTION'} eq $Lang::tr{'update'}) {
 230                         # Open /var/ipfire/ddns/config for writing.
 231                         open(FILE, ">$datafile") or die "Unable to open $datafile.";
 232
 233                         # Lock file for writing.
 234                         flock FILE, 2;
 235
 236                         my $id = 0;
 237
 238                         # Read file line by line.
 239                         foreach my $line (@current) {
 240                                 if ($settings{'ID'} eq $id) {
 241                                         print FILE "$settings{'SERVICE'},$hostname,$domain,$settings{'PROXY'},$settings{'WILDCARDS'},$settings{'LOGIN'},$settings{'PASSWORD'},$settings{'ENABLED'}\n";
 242                                 } else {
 243                                         print FILE "$line";
 244                                 }
 245
 246                                 # Increase $id.
 247                                 $id++;
 248                         }
 249
 250                         # Close file after writing.
 251                         close(FILE);
 252
 253                         # Write out notice to logfile.
 254                         &General::log($Lang::tr{'ddns hostname modified'});
 255                 }
 256                 # Clear settings hash.
 257                 %settings = '';
 258
 259                 # Update ddns config file.
 260                 &GenerateDDNSConfigFile();
 261         }
 262 }
 263
 264 #
 265 # Remove existing accounts.
 266 #
 267 if ($settings{'ACTION'} eq $Lang::tr{'remove'}) {
 268         # Open /var/ipfire/ddns/config for writing.
 269         open(FILE, ">$datafile") or die "Unable to open $datafile.";
 270
 271         # Lock file for writing.
 272         flock FILE, 2;
 273
 274         my $id = 0;
 275
 276         # Read file line by line.
 277         foreach my $line (@current) {
 278                 # Write back every line, except the one we want to drop
 279                 # (identified by the ID)
 280                 unless ($settings{'ID'} eq $id) {
 281                         print FILE "$line";
 282                 }
 283
 284                 # Increase id.
 285                 $id++;
 286         }
 287         undef $settings{'ID'};
 288
 289         # Close file after writing.
 290         close(FILE);
 291
 292         # Write out notice to logfile.
 293         &General::log($Lang::tr{'ddns hostname removed'});
 294
 295         # Update ddns config file.
 296         &GenerateDDNSConfigFile();
 297 }
 298
 299 #
 300 # Read items for editing.
 301 #
 302 if ($settings{'ACTION'} eq $Lang::tr{'edit'}) {
 303         my $id = 0;
 304         my @temp;
 305
 306         # Read file line by line.
 307         foreach my $line (@current) {
 308                 if ($settings{'ID'} eq $id) {
 309                         # Remove newlines.
 310                         chomp($line);
 311
 312                         # Splitt lines (splitting element is a single ",") and save values into temp array.
 313                         @temp = split(/\,/,$line);
 314
 315                         # Handle hostname details. Only connect the values with a dott if both are available.
 316                         my $hostname;
 317
 318                         if (($temp[1]) && ($temp[2])) {
 319                                 $hostname = "$temp[1].$temp[2]";
 320                         } else {
 321                                 $hostname = "$temp[1]";
 322                         }
 323
 324                         $settings{'SERVICE'} = $temp[0];
 325                         $settings{'HOSTNAME'} = $hostname;
 326                         $settings{'PROXY'} = $temp[3];
 327                         $settings{'WILDCARDS'} = $temp[4];
 328                         $settings{'LOGIN'} = $temp[5];
 329                         $settings{'PASSWORD'} = $temp[6];
 330                         $settings{'TOKEN'} = $temp[6];
 331                         $settings{'ENABLED'} = $temp[7];
 332                 }
 333
 334                 # Increase $id.
 335                 $id++;
 336         }
 337
 338         &GenerateDDNSConfigFile();
 339 }
 340
 341 #
 342 # Handle forced updates.
 343 #
 344 if ($settings{'ACTION'} eq $Lang::tr{'instant update'}) {
 345     system(@ddnsprog) == 0 or die "@ddnsprog failed: $?\n";
 346 }
 347
 348 #
 349 # Set default values.
 350 #
 351 if (!$settings{'ACTION'}) {
 352         $settings{'SERVICE'} = 'dyndns.org';
 353         $settings{'ENABLED'} = 'on';
 354         $settings{'ID'} = '';
 355 }
 356
 357 &Header::openpage($Lang::tr{'dynamic dns'}, 1, '');
 358
 359 ### Java Script ###
 360 print"<script>\n";
 361
 362 # Generate Java Script Array which contains the provider that support token.
 363 my $line = "";
 364 $line = join("', '", @token_provider);
 365
 366 print "\t// Array which contains the providers that support token.\n";
 367 print "\ttoken_provider = ['$line']\;\n\n";
 368
 369 print <<END
 370         // Java Script function to swap the text input fields for
 371         // username and password or token.
 372         var update_auth = function() {
 373                 if(inArray(\$('#SERVICE').val(), token_provider)) {
 374                         \$('.username').hide();
 375                         \$('.password').hide();
 376                         \$('.token').show();
 377                 } else {
 378                         \$('.username').show();
 379                         \$('.password').show();
 380                         \$('.token').hide();
 381                 }
 382         };
 383
 384         // Java Script function to check if a given value is part of
 385         // an array.
 386         function inArray(value,array) {
 387                 var count=array.length;
 388
 389                 for(var i=0;i<count;i++) {
 390                         if(array[i]===value){
 391                                 return true;
 392                         }
 393                 }
 394
 395                 return false;
 396         }
 397
 398         // JQuery function to call corresponding function when
 399         // the service provider is changed or the page is loaded for showing/hiding
 400         // the username/password or token area.
 401         \$(document).ready(function() {
 402                 \$('#SERVICE').change(update_auth);
 403                         update_auth();
 404         });
 405
 406 </script>
 407 END
 408 ;
 409
 410 &Header::openbigbox('100%', 'left', '', $errormessage);
 411
 412 # Read file for general ddns settings.
 413 &General::readhash($settingsfile, \%settings);
 414
 415 my %checked =();
 416 $checked{'BEHINDROUTER'}{'RED_IP'} = '';
 417 $checked{'BEHINDROUTER'}{'FETCH_IP'} = '';
 418 $checked{'BEHINDROUTER'}{$settings{'BEHINDROUTER'}} = "checked='checked'";
 419
 420 $checked{'ENABLED'}{'on'} = '';
 421 $checked{'ENABLED'}{'off'} = '';
 422 $checked{'ENABLED'}{$settings{'ENABLED'}} = "checked='checked'";
 423
 424 # Show box for errormessages..
 425 if ($errormessage) {
 426     &Header::openbox('100%', 'left', $Lang::tr{'error messages'});
 427     print "<font class='base'>$errormessage&nbsp;</font>";
 428     &Header::closebox();
 429 }
 430
 431 &Header::openbox('100%', 'left', $Lang::tr{'settings'});
 432
 433 ##
 434 # Section for general ddns setup.
 435 print <<END
 436 <form method='post' action='$ENV{'SCRIPT_NAME'}'>
 437 <table width='100%'>
 438         <tr>
 439                 <td class='base'>$Lang::tr{'dyn dns source choice'}</td>
 440         </tr>
 441         <tr>
 442                 <td class='base'><input type='radio' name='BEHINDROUTER' value='RED_IP' $checked{'BEHINDROUTER'}{'RED_IP'} />
 443                 $Lang::tr{'use ipfire red ip'}</td>
 444         </tr>
 445         <tr>
 446                 <td class='base'><input type='radio' name='BEHINDROUTER' value='FETCH_IP' $checked{'BEHINDROUTER'}{'FETCH_IP'} />
 447                 $Lang::tr{'fetch ip from'}</td>
 448         </tr>
 449 </table>
 450 <br />
 451 <hr />
 452
 453 <table width='100%'>
 454         <tr>
 455                 <td align='right' valign='top' class='base'><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td>
 456         </tr>
 457 </table>
 458 </form>
 459 END
 460 ;
 461
 462 &Header::closebox();
 463
 464 ##
 465 # Section to add or edit an existing entry.
 466
 467 # Default is add.
 468 my $buttontext = $Lang::tr{'add'};
 469
 470 # Change buttontext and headline if we edit an account.
 471 if ($settings{'ACTION'} eq $Lang::tr{'edit'}) {
 472         # Rename button and print headline for updating.
 473         $buttontext = $Lang::tr{'update'};
 474         &Header::openbox('100%', 'left', $Lang::tr{'edit an existing host'});
 475 } else {
 476         # Otherwise use default button text and show headline for adding a new account.
 477         &Header::openbox('100%', 'left', $Lang::tr{'add a host'});
 478 }
 479
 480 print <<END
 481 <form method='post' action='$ENV{'SCRIPT_NAME'}'>
 482 <input type='hidden' name='ID' value='$settings{'ID'}' />
 483 <table width='100%'>
 484         <tr>
 485                 <td width='25%' class='base'>$Lang::tr{'service'}:</td>
 486                 <td width='25%'>
 487 END
 488 ;
 489                 # Generate dropdown menu for service selection.
 490                 print"<select size='1' name='SERVICE' id='SERVICE'>\n";
 491
 492                 my $selected;
 493
 494                 # Loop to print the providerlist.
 495                 foreach my $provider (@providers) {
 496                         # Check if the current provider needs to be selected.
 497                         if ($provider eq $settings{'SERVICE'}) {
 498                                 $selected = 'selected';
 499                         } else {
 500                                 $selected = "";
 501                         }
 502
 503                         # Print out the HTML option field.
 504                         print "<option value=\"$provider\" $selected>$provider</option>\n";
 505                 }
 506
 507                 print"</select></td>\n";
 508 print <<END
 509                 <td width='20%' class='base'>$Lang::tr{'hostname'}:</td>
 510                 <td width='30%'><input type='text' name='HOSTNAME' value='$settings{'HOSTNAME'}' /></td>
 511         </tr>
 512
 513         <tr>
 514                 <td class='base'>$Lang::tr{'enabled'}</td>
 515                 <td><input type='checkbox' name='ENABLED' $checked{'ENABLED'}{'on'} /></td>
 516
 517                 <td class='username'>$Lang::tr{'username'}</td>
 518                 <td class='username'><input type='text' name='LOGIN' value='$settings{'LOGIN'}' /></td>
 519
 520                 <td class='token' style='display:none'>$Lang::tr{'token'}</td>
 521                 <td class='token' style='display:none'><input type='text' name='TOKEN' value='$settings{'TOKEN'}' /></td>
 522         </tr>
 523
 524         <tr class='password'>
 525                 <td class='base'></td>
 526                 <td></td>
 527                 <td class='base'>$Lang::tr{'password'}</td>
 528                 <td><input type='password' name='PASSWORD' value='$settings{'PASSWORD'}' /></td>
 529         </tr>
 530 </table>
 531 <br>
 532 <hr>
 533
 534 <table width='100%'>
 535 <tr>
 536     <td width='30%' align='right' class='base'>
 537         <input type='hidden' name='ACTION' value='$buttontext'>
 538         <input type='submit' name='SUBMIT' value='$buttontext'></td>
 539 </tr>
 540 </table>
 541 </form>
 542 END
 543 ;
 544 &Header::closebox();
 545
 546 ##
 547 # Third section, display all created ddns hosts.
 548 # Re-open file to get changes.
 549 open(FILE, $datafile) or die "Unable to open $datafile.";
 550 @current = <FILE>;
 551 close(FILE);
 552
 553 # Get IP address of the red interface.
 554 my $ip = &General::GetDyndnsRedIP();
 555 my $id = 0;
 556 my $toggle_enabled;
 557
 558 if (@current) {
 559         &Header::openbox('100%', 'left', $Lang::tr{'current hosts'});
 560
 561         print <<END;
 562 <table width='100%' class='tbl'>
 563         <tr>
 564                 <th width='30%' align='center' class='boldbase'><b>$Lang::tr{'service'}</b></th>
 565                 <th width='50%' align='center' class='boldbase'><b>$Lang::tr{'hostname'}</b></th>
 566                 <th width='20%' colspan='3' class='boldbase' align='center'><b>$Lang::tr{'action'}</b></th>
 567         </tr>
 568 END
 569
 570         foreach my $line (@current) {
 571                 # Remove newlines.
 572                 chomp(@current);
 573                 my @temp = split(/\,/,$line);
 574
 575                 # Handle hostname details. Only connect the values with a dott if both are available.
 576                 my $hostname="";
 577
 578                 if (($temp[1]) && ($temp[2])) {
 579                         $hostname="$temp[1].$temp[2]";
 580                 } else {
 581                         $hostname="$temp[1]";
 582                 }
 583
 584                 # Generate value for enable/disable checkbox.
 585                 my $sync = '';
 586                 my $gif = '';
 587                 my $gdesc = '';
 588
 589                 if ($temp[7] eq "on") {
 590                         $gif = 'on.gif';
 591                         $gdesc = $Lang::tr{'click to disable'};
 592
 593                         # Check if the given hostname is a FQDN before doing a nslookup.
 594                         if (&General::validfqdn($hostname)) {
 595                                 $sync = (&General::DyndnsServiceSync ($ip,$temp[1], $temp[2]) ? "<font color='green'>": "<font color='red'>") ;
 596                         }
 597
 598                         $toggle_enabled = 'off';
 599                 } else {
 600                         $sync = "<font color='blue'>";
 601                         $gif = 'off.gif';
 602                         $gdesc = $Lang::tr{'click to enable'};
 603                         $toggle_enabled = 'on';
 604                 }
 605
 606                 # Background color.
 607                 my $col="";
 608
 609                 if ($settings{'ID'} eq $id) {
 610                         $col="bgcolor='${Header::colouryellow}'";
 611                 } elsif (!($temp[0] ~~ @providers)) {
 612                         $col="bgcolor='#FF4D4D'";
 613                 } elsif ($id % 2) {
 614                         $col="bgcolor='$color{'color20'}'";
 615                 } else {
 616                         $col="bgcolor='$color{'color22'}'";
 617                 }
 618
 619                 # Handle hostname details. Only connect the values with a dott if both are available.
 620                 my $hostname="";
 621
 622                 if (($temp[1]) && ($temp[2])) {
 623                         $hostname="$temp[1].$temp[2]";
 624                 } else {
 625                         $hostname="$temp[1]";
 626                 }
 627
 628                 # The following HTML Code still is part of the loop.
 629                 print <<END;
 630 <tr>
 631         <td align='center' $col><a href='http://$temp[0]'>$temp[0]</a></td>
 632         <td align='center' $col>$sync$hostname</td>
 633
 634         <td align='center' $col><form method='post' action='$ENV{'SCRIPT_NAME'}'>
 635                 <input type='hidden' name='ID' value='$id'>
 636                 <input type='hidden' name='ENABLED' value='$toggle_enabled'>
 637                 <input type='hidden' name='ACTION' value='$Lang::tr{'toggle enable disable'}' />
 638                 <input type='image' name='$Lang::tr{'toggle enable disable'}' src='/images/$gif' alt='$gdesc' title='$gdesc' />
 639         </form></td>
 640
 641         <td align='center' $col><form method='post' action='$ENV{'SCRIPT_NAME'}'>
 642                 <input type='hidden' name='ID' value='$id'>
 643                 <input type='hidden' name='ACTION' value='$Lang::tr{'edit'}' />
 644                 <input type='image' name='$Lang::tr{'edit'}' src='/images/edit.gif' alt='$Lang::tr{'edit'}' title='$Lang::tr{'edit'}' />
 645         </form></td>
 646
 647         <td align='center' $col><form method='post' action='$ENV{'SCRIPT_NAME'}'>
 648                 <input type='hidden' name='ID' value='$id'>
 649                 <input type='hidden' name='ACTION' value='$Lang::tr{'remove'}' />
 650                 <input type='image' name='$Lang::tr{'remove'}' src='/images/delete.gif' alt='$Lang::tr{'remove'}' title='$Lang::tr{'remove'}' />
 651         </form></td>
 652 </tr>
 653 END
 654                 $id++;
 655         }
 656
 657         print <<END;
 658 </table>
 659 <table width='100%'>
 660         <tr>
 661                 <td class='boldbase'>&nbsp;<b>$Lang::tr{'legend'}:&nbsp;</b></td>
 662                 <td><img src='/images/on.gif' alt='$Lang::tr{'click to disable'}' /></td>
 663                 <td class='base'>$Lang::tr{'click to disable'}</td>
 664                 <td>&nbsp;&nbsp;</td>
 665                 <td><img src='/images/off.gif' alt='$Lang::tr{'click to enable'}' /></td>
 666                 <td class='base'>$Lang::tr{'click to enable'}</td>
 667                 <td>&nbsp;&nbsp;</td>
 668                 <td><img src='/images/edit.gif' alt='$Lang::tr{'edit'}' /></td>
 669                 <td class='base'>$Lang::tr{'edit'}</td>
 670                 <td>&nbsp;&nbsp;</td>
 671                 <td><img src='/images/delete.gif' alt='$Lang::tr{'remove'}' /></td>
 672                 <td class='base'>$Lang::tr{'remove'}</td>
 673                 <form method='post' action='$ENV{'SCRIPT_NAME'}'>
 674                         <td align='right' width='30%'><input type='submit' name='ACTION' value='$Lang::tr{'instant update'}' /></td>
 675                 </form>
 676         </tr>
 677 </table>
 678 END
 679
 680         &Header::closebox();
 681 }
 682
 683 &Header::closebigbox();
 684 &Header::closepage();
 685
 686 # Function to generate the required configuration file for the DDNS tool.
 687 sub GenerateDDNSConfigFile {
 688         # Open datafile file
 689         open(SETTINGS, "<$datafile") or die "Could not open $datafile.";
 690
 691         open(FILE, ">${General::swroot}/ddns/ddns.conf");
 692
 693         # Global configuration options.
 694         print FILE "[config]\n";
 695
 696         # Check if we guess our IP address by an extranal server.
 697         if ($settings{'BEHINDROUTER'} eq "FETCH_IP") {
 698                 print FILE "guess_external_ip = true\n";
 699         } else {
 700                 print FILE "guess_external_ip = false\n";
 701         }
 702
 703         # Use an upstream proxy and generate proxy url.
 704         my %proxysettings;
 705         &General::readhash("${General::swroot}/proxy/settings", \%proxysettings);
 706         if ($proxysettings{'UPSTREAM_PROXY'}) {
 707                 my $proxy_string = "http://";
 708
 709                 if ($proxysettings{'UPSTREAM_USER'} && $proxysettings{'UPSTREAM_PASSWORD'}) {
 710                         $proxy_string .= "$proxysettings{'UPSTREAM_USER'}:$proxysettings{'UPSTREAM_PASSWORD'}@";
 711                 }
 712
 713                 $proxy_string .= $proxysettings{'UPSTREAM_PROXY'};
 714
 715                 print FILE "proxy = $proxy_string\n";
 716         }
 717
 718         print FILE "\n";
 719
 720         while (<SETTINGS>) {
 721                 my $line = $_;
 722                 chomp($line);
 723
 724                 # Generate array based on the line content (seperator is a single or multiple space's)
 725                 my @settings = split(/,/, $line);
 726                 my ($provider, $hostname, $domain, $proxy, $wildcards, $username, $password, $enabled) = @settings;
 727
 728                 # Skip entries if they are not (longer) supported.
 729                 next unless ($provider ~~ @providers);
 730
 731                 # Skip disabled entries.
 732                 next unless ($enabled eq "on");
 733
 734                 # Handle hostname details. Only connect the values with a dott if both are available.
 735                 if (($hostname) && ($domain)) {
 736                         print FILE "[$hostname.$domain]\n";
 737                 } else {
 738                         print FILE "[$hostname]\n";
 739                 }
 740
 741                 print FILE "provider = $provider\n";
 742
 743                 my $use_token = 0;
 744
 745                 # Handle token based auth for various providers.
 746                 if ($provider ~~ @token_provider) {
 747                         $use_token = 1;
 748                 }
 749
 750                 # Handle token auth for freedns.afraid.org and regfish.com.
 751                 if ($provider ~~ ["freedns.afraid.org", "regfish.com"] && $password eq "") {
 752                         $use_token = 1;
 753                         $password = $username;
 754
 755                 # Handle keys for nsupdate
 756                 } elsif (($provider eq "nsupdate") && $username && $password) {
 757                         print FILE "key = $username\n";
 758                         print FILE "secret = $password\n";
 759
 760                         $username = "";
 761                         $password = "";
 762
 763                 # Handle keys for nsupdate.info
 764                 } elsif (($provider eq "nsupdate.info") && $password) {
 765                         print FILE "secret = $password\n";
 766
 767                         $username = "";
 768                         $password = "";
 769                 }
 770
 771                 # Write auth details.
 772                 if ($use_token) {
 773                         print FILE "token = $password\n";
 774                 } elsif ($username && $password) {
 775                         print FILE "username = $username\n";
 776                         print FILE "password = $password\n";
 777                 }
 778
 779                 print FILE "\n";
 780         }
 781
 782         close(SETTINGS);
 783         close(FILE);
 784 }
 785
 786 # Function which generates an array (@providers) which contains the supported providers.
 787 sub GetProviders ($) {
 788         my ($type) = @_;
 789
 790         # Set default type to get all providers
 791         $type = $type ? $type : "all";
 792
 793         # Check if the requested type is "token-providers".
 794         if ($type eq "token-providers") {
 795                 # Call ddns util to only get providers which supports token based auth.
 796                 open(PROVIDERS, "/usr/bin/ddns list-token-providers |");
 797         } else {
 798                 # Get all supported providers.
 799                 open(PROVIDERS, "/usr/bin/ddns list-providers |");
 800         }
 801
 802         # Create new array to store the providers.
 803         my @providers = ();
 804
 805         while (<PROVIDERS>) {
 806                 my $provider = $_;
 807
 808                 # Remove following newlines.
 809                 chomp($provider);
 810
 811                 # Add provider to the array.
 812                 push(@providers, $provider);
 813         }
 814
 815         close(PROVIDERS);
 816
 817         # Return our array.
 818         return @providers;
 819 }